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  <title>利用push筛选数组</title>
  <script>
    // 有一个包含工资的数组[1500, 1200, 2000, 2100, 1800]，要求把工资超过2000的删除，并放入新的数组
    var arr = [1500, 1200, 2000, 2100, 1800]
    var newArr = []
    for (var i = 0; i < arr.length; i++) {
      if (arr[i] < 2000) {
        // newArr[newArr.length] = arr[i]
        newArr.push(arr[i])
      }
    }
    console.log(newArr)
  </script>
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